2 * prom.h - Routines for talking to the Open Firmware PROM
4 * Copyright (C) 2001 Ethan Benson
6 * Copyright (C) 1999 Benjamin Herrenschmidt
8 * Copyright (C) 1999 Marius Vollmer
10 * Copyright (C) 1996 Paul Mackerras.
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
32 typedef void *prom_handle;
33 typedef void *ihandle;
34 typedef void *phandle;
36 #define PROM_INVALID_HANDLE ((prom_handle)-1UL)
37 #define BOOTDEVSZ (2048) /* iscsi args can be in excess of 1040 bytes */
38 #define TOK_ISCSI "iscsi"
41 typedef int (*prom_entry)(struct prom_args *);
43 extern void prom_init (prom_entry pe);
45 extern prom_entry prom;
49 extern prom_handle prom_stdin;
50 extern prom_handle prom_stdout;
52 prom_handle prom_open (char *spec);
53 int prom_read (prom_handle file, void *buf, int len);
54 int prom_write (prom_handle file, void *buf, int len);
55 int prom_seek (prom_handle file, int pos);
56 int prom_lseek (prom_handle file, unsigned long long pos);
57 int prom_readblocks (prom_handle file, int blockNum, int blockCount, void *buffer);
58 void prom_close (prom_handle file);
59 int prom_getblksize (prom_handle file);
60 int prom_loadmethod (prom_handle device, void* addr);
68 void prom_putchar (char);
72 void prom_vprintf (char *fmt, va_list ap) __attribute__ ((format (printf, 1, 0)));
73 void prom_fprintf (prom_handle dev, char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
74 void prom_printf (char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
76 void prom_vprintf (char *fmt, va_list ap);
77 void prom_fprintf (prom_handle dev, char *fmt, ...);
78 void prom_printf (char *fmt, ...);
81 void prom_perror (int error, char *filename);
82 void prom_readline (char *prompt, char *line, int len);
83 int prom_set_color(prom_handle device, int color, int r, int g, int b);
87 void *prom_claim (void *virt, unsigned int size, unsigned int align);
88 void prom_release(void *virt, unsigned int size);
89 void prom_map (void *phys, void *virt, int size);
91 /* packages and device nodes */
93 prom_handle prom_finddevice (char *name);
94 prom_handle prom_findpackage (char *path);
95 int prom_getprop (prom_handle dev, char *name, void *buf, int len);
96 int prom_getproplen(prom_handle, const char *);
97 int prom_get_devtype (char *device);
101 char *prom_getargs ();
102 void prom_setargs (char *args);
105 void prom_abort (char *fmt, ...);
106 void prom_sleep (int seconds);
108 int prom_interpret (char *forth);
110 int prom_get_chosen (char *name, void *mem, int len);
111 int prom_get_options (char *name, void *mem, int len);
113 extern int prom_getms(void);
114 extern void prom_pause(void);
116 extern void *call_prom (const char *service, int nargs, int nret, ...);
117 extern void *call_prom_return (const char *service, int nargs, int nret, ...);